#!/bin/bash
echo "=== 系统健康检查报告 ==="
echo "生成时间：$(date)"
echo ""

echo "1. 系统运行时间和负载："
uptime
echo ""

echo "2. 磁盘使用情况："
df -H
echo ""

echo "3. 内存使用情况："
free -h
echo ""

echo "4. 最近登录的用户："
who
echo ""
